Tham khảo tài liệu 'theory and problems of strength of materials part 6', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 146 SHEARING FORCE AND BENDING MOMENT CHAI1 6 Supplementary Problems For the cantilever beams loaded as shown in Figs. 6-37 and 6-38. write equations for the shearing force and bending moment at any point along the length of the beam. Also draw the shearing force and bending moment diagrams. I kN Shear 2 kN V - IkN V - -3 kN M --- -X kN m M -X-2 x-l kN m for 0 X 1 m for 1 X 2 m for 0 X 1 m for 1 A 2 m . Bending IZ- kN v kN V -24 M M 2. lx x 2 Bending Moment for 0 x 2 for 2 X 3 for 3 X 4 for 0 t 2 for 2 X 3 kN-o kN-m 1 8 kN m Fig. 6-38 M - x - 21 x - 3 for3 x 4 CHAP. 6 SHEARING FORCE AND BENDING MOMENT 147 For the beams of Problems through simply supported at the ends and loaded as shown write equations for the shearing foree and bending moment al any point along the length of the beam. Also draw the shearing force and bending moment diagrams. . Fig. 6-39 V 500 - lb v I00 - 200 .r - 4 lb M 500x - lb ft M - 400 1 - 2 - 100 .r - 4 lb fl for 0 .V 4 fl for 4 A fl for 0 A 4 fl for 4 A 8 fl . Fig. 6-40 V 20kN V - 20 - 15 x - v -10 kN M 20a kN m M 20 - 7 5 .r - kN m M 10 kN m for 0 A m for r m for A m for 0 A m for A m for 0 z 2
